<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" 
    "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd" [
  <!-- an internal subset can be embedded here -->  
]>

<html xmlns="http://www.w3.org/1999/xhtml">